"Physical addiction" refers to a situation when a person's body becomes dependent on a substance or activity. They need it to function normally and may experience withdrawal symptoms if they try to quit or reduce their use. Full definition
Aside from the legitimate physical addiction to sugar, part of these cravings simply come from a desire for some type of distraction. (cutthewheat.com)
As far as stevia being a no - no, according to the forum discussion the 30 - day program is not only about ridding our body of physical addictions to sugar and other things, but also about ridding our cravings and psychological addictions to desserts and using food as a reward. (ibreatheimhungry.com)